CO2 bottle are for CO2 only
And Air bottles are for Air only.
You cant mix and match.
And whilst some sites dont yet offer Air fills, more and more are.
This is another advantage of a prefixed screw in air system. If you keep your CO2 bottle, its possible to use CO2 (once youve rechronied
) if air isnt available.
Keeps your options open.
If you do want to, or have gone to air ALWAYS ask at a site BEFORE you go down if they supply air fills.
Last thing you want to do is turn up, and not be able to use your shiny baby